Winnebago is located in Winnebago county Illinois with a geographic area of 1.9 square miles. The total population in Winnebago is 3,539 with 48.0% male and 52.0% female. Children under age 5 represent 5.5% of the population, under age 18 equal 25.9% of the population and over age 65 is 16.4% of the population. The median household income is $83,611, per capita income is $36,355. There are a total of 1,362 housing units with 86.6% owner occupied. Education includes 25.7% of residents that are high school graduates and 27.1% with a bachelor's degree or higher. The average temperature in Winnebago in the summer is 74 degrees, and in the winter 27 degrees.
